CVE-2020-14154 Security feature bypass in n/a

Medium 4.8 Published Updated

Mutt allows connections despite rejected expired intermediate certificates, bypassing TLS security checks and exposing users to potential man-in-the-middle attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-14154?

CVE-2020-14154 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 15 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Mutt before 1.14.3 proceeds with a connection even if, in response to a GnuTLS certificate prompt, the user rejects an expired intermediate certificate.

Which versions are affected by CVE-2020-14154?

It affects 2 products.

Linux distribution packages (1)
mutt openSUSE:TumbleweedAll versions2.2.12-2.1

Products include Canonical Ubuntu Linux, Mutt Mutt.

How do I fix CVE-2020-14154?

Upgrade to a fixed version.

Is CVE-2020-14154 being exploited?

There is no known exploitation of CVE-2020-14154 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-14154, GHSA-v3gg-5crq-w4vj, OESA-2021-1399, UBUNTU-CVE-2020-14154, openSUSE-SU-2024:13279-1.

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